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prexpand fix; quasiquote supports #&box

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ESL 2024-11-20 22:03:24 -05:00
parent f75a2aae74
commit a86a0d59d5
3 changed files with 46 additions and 26 deletions
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1
pre/s.scm
View file

@ -180,6 +180,7 @@
[(_ ,@x d) (cons 'unquote-splicing (quasiquote (x) . d))]
[(_ (x . y) . d) (cons (quasiquote x . d) (quasiquote y . d))]
[(_ #(x ...) . d) (list->vector (quasiquote (x ...) . d))]
[(_ #&x . d) (box (quasiquote x . d))]
[(_ x . d) 'x]))
(define-syntax when ; + body support

17
pre/t.scm
View file

@ -436,6 +436,19 @@
[(not (val-core? hval)) (x-error "improper use of syntax form" hval)]
[else (xpand-call hval tail env)])]))]))
; prexpand check if sexp expands to a transformer or a definition primitive (a symbol)
(define (prexpand sexp env) ; also may return any core, it won't be used
(cond [(id? sexp) (xpand-ref sexp env)]
[(not (pair? sexp)) '#f] ; any core
[else ; note: these transformations are made in 'expression' context
(let* ([head (car sexp)] [tail (cdr sexp)] [hval (prexpand head env)])
(case hval
[(syntax-lambda) (xpand-syntax-lambda tail env #t)]
[(syntax-rules) (xpand-syntax-rules tail env)]
[else (cond [(val-transformer? hval) (prexpand (hval sexp env) env)]
[else '#f])]))]))
(define (xpand-quote tail env)
(if (list1? tail)
(list 'quote (xpand-sexp->datum (car tail)))
@ -564,7 +577,7 @@
(let loop ([env env] [ids '()] [inits '()] [nids '()] [body tail])
(if (and (pair? body) (pair? (car body)))
(let ([first (car body)] [rest (cdr body)])
(let* ([head (car first)] [tail (cdr first)] [hval (xpand #t head env)])
(let* ([head (car first)] [tail (cdr first)] [hval (prexpand head env)])
(case hval
[(begin) ; internal
(if (list? tail)
@ -2760,7 +2773,7 @@
[help "-h" "--help" #f "Display this help"]
))
(define *skint-version* "0.6.4")
(define *skint-version* "0.6.5")
(define (implementation-version) *skint-version*)
(define (implementation-name) "SKINT")

54
t.c
View file

@ -279,6 +279,12 @@ char *t_code[] = {
":x-error)[73}.1p~?{.1,'(s27:improper use of syntax form),@(y7:x-error)"
"[72}.6,.3,.3,@(y10:xpand-call)[73",
"P", "prexpand",
"%2${.2,@(y3:id?)[01}?{.1,.1,@(y9:xpand-ref)[22}.0p~?{f]2}.0a,.1d,${.5,"
".4,@(y8:prexpand)[02},.0,'(y13:syntax-lambda),.1v?{t,.6,.4,@(y19:xpand"
"-syntax-lambda)[63}'(y12:syntax-rules),.1v?{.5,.3,@(y18:xpand-syntax-r"
"ules)[62}.1K0?{.5,${.8,.8,.6[02},@(y8:prexpand)[62}f]6",
"P", "xpand-quote",
"%2${.2,@(y6:list1?)[01}?{${.2a,@(y17:xpand-sexp->datum)[01},'(y5:quote"
"),l2]2}.0,'(y5:quote)c,'(s19:improper quote form),@(y7:x-error)[22",
@ -364,29 +370,29 @@ char *t_code[] = {
"P", "xpand-body",
"%3.0u?{'(y5:begin),l1]3}${.2,@(y6:list1?)[01}?{.1,.1a,.4,@(y5:xpand)[3"
"3}.0L0~?{.0,'(y4:body)c,'(s18:improper body form),@(y7:x-error)[32}.0,"
"n,n,n,.5,,#0.8,.1,&2{%5.4p?{.4ap}{f}?{.4d,.5a,.0a,.1d,${.6,.4,t,@(y5:x"
"pand)[03},.0,'(y5:begin),.1v?{.2L0?{.5,.3L6,.(i10),.(i10),.(i10),.(i10"
"),:0^[(i11)5}.4,'(s19:improper begin form),@(y7:x-error)[(i11)2}'(y6:d"
"efine),.1v?{${.4,.6,@(y17:preprocess-define)[02},${.2,@(y6:list1?)[01}"
"?{.0a,.7,.(i12),fc,.(i12),.3c,.(i12),fc,.(i12),:0^[(i13)5}.0a,.1da,${$"
"{.5,@(y7:id->sym)[01},@(y6:gensym)[01},${.(i12),.3,.6,@(y13:add-local-"
"var)[03},.(i10),.(i15),.3c,.(i15),.5c,.(i15),.7c,.4,:0^[(i16)5}'(y13:d"
"efine-syntax),.1v?{${.4,.6,@(y24:preprocess-define-syntax)[02},.0a,.1d"
"a,${.(i11),'(l1:y9:undefined;),.5,@(y17:extend-xenv-local)[03},.9,.(i1"
"4),tc,.(i14),.4c,.(i14),.6c,.4,:0^[(i15)5}'(y14:define-library),.1v?{$"
"{.4,@(y7:list2+?)[01}?{${.4a,@(y9:listname?)[01}}{f}?{${f,.9,.6,.8,@(y"
"20:xpand-define-library)[04},.0da,.1dda,${.(i11),.3,.5,@(y17:extend-xe"
"nv-local)[03},.9,.(i14),.(i14),.(i14),.4,:0^[(i15)5}.4,'(s28:improper "
"define-library form),@(y7:x-error)[(i11)2}'(y6:import),.1v?{.2L0?{${f,"
".9,.6,.8,@(y12:xpand-import)[04},.0da,'0,.1V4,'1,.2V4,.(i10),.1,,#0.(i"
"10),.1,.(i14),.(i19),.(i19),.(i19),:0,.(i11),&8{%2.0u?{:0,@(y15:syntax"
"-quote-id),l2,:5,:4,fc,:3,.3c,:2,fc,.6,:1^[35}.0ad,${.3aa,:7,@(y12:id-"
"rename-as)[02},.3,.2,.2,&3{%2:0,.1q?{'(l2:y3:ref;y4:peek;),.2A0?{:1]2}"
"f]2}.1,.1,:2[22},.3d,:6^[42}.!0.0^_1[(i15)2}.4,'(s20:improper import f"
"orm),@(y7:x-error)[(i11)2}.1K0?{.5,${.9,.8,.6[02}c,.(i10),.(i10),.(i10"
"),.(i10),:0^[(i11)5}:1,.7,.(i12),.(i12)A8,.(i12)A8,.(i12)A8,@(y12:xpan"
"d-labels)[(i11)6}:1,.1,.6,.6A8,.6A8,.6A8,@(y12:xpand-labels)[56}.!0.0^"
"_1[35",
"n,n,n,.5,,#0.8,.1,&2{%5.4p?{.4ap}{f}?{.4d,.5a,.0a,.1d,${.6,.4,@(y8:pre"
"xpand)[02},.0,'(y5:begin),.1v?{.2L0?{.5,.3L6,.(i10),.(i10),.(i10),.(i1"
"0),:0^[(i11)5}.4,'(s19:improper begin form),@(y7:x-error)[(i11)2}'(y6:"
"define),.1v?{${.4,.6,@(y17:preprocess-define)[02},${.2,@(y6:list1?)[01"
"}?{.0a,.7,.(i12),fc,.(i12),.3c,.(i12),fc,.(i12),:0^[(i13)5}.0a,.1da,${"
"${.5,@(y7:id->sym)[01},@(y6:gensym)[01},${.(i12),.3,.6,@(y13:add-local"
"-var)[03},.(i10),.(i15),.3c,.(i15),.5c,.(i15),.7c,.4,:0^[(i16)5}'(y13:"
"define-syntax),.1v?{${.4,.6,@(y24:preprocess-define-syntax)[02},.0a,.1"
"da,${.(i11),'(l1:y9:undefined;),.5,@(y17:extend-xenv-local)[03},.9,.(i"
"14),tc,.(i14),.4c,.(i14),.6c,.4,:0^[(i15)5}'(y14:define-library),.1v?{"
"${.4,@(y7:list2+?)[01}?{${.4a,@(y9:listname?)[01}}{f}?{${f,.9,.6,.8,@("
"y20:xpand-define-library)[04},.0da,.1dda,${.(i11),.3,.5,@(y17:extend-x"
"env-local)[03},.9,.(i14),.(i14),.(i14),.4,:0^[(i15)5}.4,'(s28:improper"
" define-library form),@(y7:x-error)[(i11)2}'(y6:import),.1v?{.2L0?{${f"
",.9,.6,.8,@(y12:xpand-import)[04},.0da,'0,.1V4,'1,.2V4,.(i10),.1,,#0.("
"i10),.1,.(i14),.(i19),.(i19),.(i19),:0,.(i11),&8{%2.0u?{:0,@(y15:synta"
"x-quote-id),l2,:5,:4,fc,:3,.3c,:2,fc,.6,:1^[35}.0ad,${.3aa,:7,@(y12:id"
"-rename-as)[02},.3,.2,.2,&3{%2:0,.1q?{'(l2:y3:ref;y4:peek;),.2A0?{:1]2"
"}f]2}.1,.1,:2[22},.3d,:6^[42}.!0.0^_1[(i15)2}.4,'(s20:improper import "
"form),@(y7:x-error)[(i11)2}.1K0?{.5,${.9,.8,.6[02}c,.(i10),.(i10),.(i1"
"0),.(i10),:0^[(i11)5}:1,.7,.(i12),.(i12)A8,.(i12)A8,.(i12)A8,@(y12:xpa"
"nd-labels)[(i11)6}:1,.1,.6,.6A8,.6A8,.6A8,@(y12:xpand-labels)[56}.!0.0"
"^_1[35",
"P", "xpand-labels",
"%6,#0${.5,&0{%1t,.1q]1},@(y6:andmap)[02}.!0n,n,.5,.5,.5,,#0.0,.(i12),."
@ -1737,7 +1743,7 @@ char *t_code[] = {
"kint-options*)",
"C", 0,
"'(s5:0.6.4)@!(y15:*skint-version*)",
"'(s5:0.6.5)@!(y15:*skint-version*)",
"P", "implementation-version",
"%0@(y15:*skint-version*)]0",